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Round 7
18 July 1980
| Delaney (5½) |
½-½ |
Porter (4½) |
| Curtin (4) |
½-½ |
Short (3½) |
| Ludgate (3) |
½-½ |
Littleton (3½) |
| Clarke (3½) |
1-0 |
O'Hare (3½) |
| Cassidy (3½) |
w/o |
Carton (3½) |
| McCarthy (3) |
0-1 |
Allen (3) |
| O'Reilly (3) |
0-1 |
Wallace (3) |
| Killane (3) |
1-0 |
McDaid (3) |
| Lyons (2½) |
0-1 |
McDonnell (2½) |
| Pinkerton (2) |
0-1 |
McGill (2½) |
| O'Brien (1½) |
1-0 |
Quinn (2) |
| Cronin (½) |
0-1 |
O'Shea (2½) |
Scores after round 7
| Delaney | 6 |
| Porter | 5 |
| Cassidy | 4½ |
| Clarke | 4½ |
| Curtin | 4½ |
| Allen | 4 |
| Killane | 4 |
| Littleton | 4 |
| Short | 4 |
| Wallace | 4 |
| Carton | 3½ |
| Ludgate | 3½ |
| McDonnell | 3½ |
| McGill | 3½ |
| O'Hare | 3½ |
| O'Shea | 3½ |
| McCarthy | 3 |
| McDaid | 3 |
| O'Reilly | 3 |
| Lyons | 2½ |
| O'Brien | 2½ |
| Pinkerton | 2 |
| Quinn | 2 |
| Cronin | ½ |